Home / 31,271.20-43,154.28-17,124.05

Finding the Fourth Proportional to 31,271.20, 43,154.28 and 17,124.05

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Solution

The fourth proportional to 31,271.20, 43,154.28 and 17,124.05 is: 23,631.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.20 : 43,154.28 = 17,124.05 : x
  2. Step 2: Convert to fraction form
    31,271.20/43,154.28 = 17,124.05/x
  3. Step 3: Cross multiply
    31,271.20x = 43,154.28 × 17,124.05
  4. Step 4: Simplify right side
    31,271.20x = 738,975,747.04
  5. Step 5: Solve for x
    x = 738,975,747.04/31,271.20
  6. Step 6: Final answer
    x = 23,631.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.